/*
 * Copyright (c) 2013, 2019 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package org.glassfish.jersey.tests.cdi.resources;

/**
 * Echo implementation to reverse given input.
 *
 * @author Jakub Podlesak
 */
@Reversing
public class ReverseEcho implements EchoService {

    @Override
    public String echo(String s) {
        return reverseString(s);
    }

    private String reverseString(final String s) {
        final int len = s.length();

        char[] chars = new char[len];
        for (int i = 0; i < len; i++) {
            chars[i] = s.charAt(len - i - 1);
        }
        return new String(chars);
    }
}
